Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Strawberry crinkle cytorhabdovirus

Index

• Nomenclature
• Host range, transmission and symptoms
• Physical and biochemical properties
• Taxonomy and relationships
• Comments and References

Data collated by R.H. Converse, 1985 and J.A. Cooper, 1985.

Nomenclature

Acronym

SCrV (SCV)

Strains

strawberry latent A (mild form); strawberry latent A and latent B; strawberry vein chlorosis.

ICTV decimal code

62.0.4.0.008

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Fragaria vesca - chlorotic and necrotic spotting of veins, epinasty, deformation, local lesions in petioles and stolons, streaking and deformation of petals.
• Fragaria virginiana - leaflets malformed, vigour reduced.
• Fragaria chiloensis, F. × ananassa (cultivated strawberry) - usually symptomless.

Transmission

Transmitted by a vector; an insect; Chaetosiphon jacobi, Chaetosiphon fragaraefolii; Aphididae. Transmitted in a persistent manner. Virus retained when the vector moults; multiplies in the vector; not transmitted congenitally to the progeny of the vector; transmitted by mechanical inoculation (by injection of haemolymph from aphid to aphid); transmitted by grafting; not transmitted by contact between plants; not transmitted by seed; not transmitted by pollen.

Geographical distribution

Spreads in the African region, the Eurasian region, the North American region, and the South and Central American region; Australia, Belgium, Bulgaria, Canada, Chile, China, the former Czechoslovakia, France, Germany, Israel, Italy, Japan, the Netherlands, New Zealand, Poland, South Africa, the UK, the USA, the former Yugoslavia.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Fragaria vesca - chlorotic and necrotic spotting of veins, epinasty, deformation, local lesions in petioles and stolons, streaking and deformation of petals.
• Fragaria virginiana - leaflets malformed, vigour reduced.

Maintenance and propagation hosts

Fragaria chiloensis, F. × ananassa, F. vesca, F. virginiana.

Assay hosts (Local lesions or Whole plants)

Fragaria vesca var. semperflorens (W).

Susceptible host species

• Fragaria chiloensis
• Fragaria vesca
• Fragaria vesca var. semperflorens
• Fragaria virginiana
• Fragaria × ananassa
• Sanguisorba minor

Families containing susceptible hosts

• Rosaceae (6/6)

Physical and biochemical properties

Properties of particles in sap

LIV: 0.1-0.2 days (the virus remains infectious for at least 1 hour in refrigerated extracts made of infective aphids. Infectious virus can be recovered from aphids frozen at -54ºC for two years). Leaf sap contains few virions.

Particle morphology

Virions rhabdo- or bullet-shaped (ranging between 190-380 nm); enveloped (less than 80 nm and uncoated); with no clear modal length; 42 nm wide (»3 nm).

Cytopathology

Virions found in epidermis and in parenchyma cells near vascular bundles and sieve tubes; in cytoplasm; sometimes enclosed in membrane bound cisternae.

Taxonomy and relationships

Cytorhabdovirus: Rhabdoviridae

Comments and References

References

• Frazier, N.W. and Mellor, F.C. (1970). In: Virus Diseases of Small Fruits and Grapevines, pp. 18-23; ed. Frazier, N.W.. Univ. Calif., Div. Agric. Sci., Berkeley.
• Frazier, N.W., Sylvester, E.S. and Richardson, J. (1987). In: Virus Diseases of Small Fruits; ed. R.H. Converse. U.S. Dep. Agric. Hdbk No. 631, p. 20.
• Richardson, J., Frazier, N.W. and Sylvester, E.S. (1972). Phytopathology 62: 491.
• Sylvester, E.S., Frazier, N.W. and Richardson, J. (1976). CMI/AAB Descr. Pl. Viruses No. 163, 4 pp.
• Zeller, S.M. and Vaughan, E.K. (1932). Phytopathology 22: 709.

Cite this publication as: Brunt, A.A., Crabtree, K., Dallwitz, M.J., Gibbs, A.J., Watson, L. and Zurcher, E.J. (eds.) (1996 onwards). `Plant Viruses Online: Descriptions and Lists from the VIDE Database. Version: 20^th August 1996.' URL http://biology.anu.edu.au/Groups/MES/vide/

Dallwitz (1980) and Dallwitz, Paine and Zurcher (1993) should also be cited.